Improved artwork (ithumb) writing.
Improved artwork (ithumb) writing.

Removed mountpoint from ithumb-writer and instead use ithumb_dir which
will be set _before_ the writing of the ithumb files takes place.
Thus the path is not evaluated again and again for each ithumb file.

neuschaefer/libgpod,neuschaefer/libgpod,hyperair/libgpod,neuschaefer/libgpod,neuschaefer/libgpod,hyperair/libgpod,neuschaefer/libgpod,hyperair/libgpod,hyperair/libgpod,hyperair/libgpod